/* ============================================================
   Daniel Cezanne – Blog CSS
   Dark professional theme
   ============================================================ */

:root {
  --bg:        #0f0f13;
  --bg2:       #16161d;
  --bg3:       #1e1e28;
  --border:    #2a2a3a;
  --text:      #e8e8f0;
  --text-dim:  #8888aa;
  --accent:    #6c63ff;
  --accent2:   #a78bfa;
  --white:     #ffffff;
  --radius:    12px;
  --font:      'Segoe UI', system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
}

a { color: var(--accent2); text-decoration: none; }
a:hover { color: var(--white); }

img { max-width: 100%; display: block; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---- HEADER ---- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15,15,19,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-dim);
  font-size: 0.95rem;
  transition: color .2s;
}
.nav-links a:hover { color: var(--white); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ---- HERO ---- */
.hero {
  padding: 6rem 0 5rem;
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg3) 100%);
  border-bottom: 1px solid var(--border);
}

.hero-tag {
  display: inline-block;
  background: rgba(108,99,255,0.15);
  color: var(--accent2);
  border: 1px solid rgba(108,99,255,0.3);
  border-radius: 999px;
  padding: 0.25rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--white);
  letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-dim);
  max-width: 600px;
  margin-bottom: 2.2rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-block;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all .2s;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-primary:hover {
  background: var(--accent2);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-outline:hover {
  border-color: var(--accent2);
  color: var(--accent2);
}

/* ---- SECTIONS ---- */
.section { padding: 5rem 0; }

.section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 2.5rem;
  letter-spacing: -0.02em;
}

/* ---- POSTS GRID ---- */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.post-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  transition: border-color .2s, transform .2s;
}

.post-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.post-tag {
  display: inline-block;
  background: rgba(108,99,255,0.12);
  color: var(--accent2);
  border-radius: 6px;
  padding: 0.2rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.post-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.8rem;
  line-height: 1.4;
}

.post-card h3 a { color: var(--white); }
.post-card h3 a:hover { color: var(--accent2); }

.post-card p {
  color: var(--text-dim);
  font-size: 0.93rem;
  margin-bottom: 1.2rem;
}

.read-more {
  color: var(--accent2);
  font-size: 0.9rem;
  font-weight: 600;
}
.read-more:hover { color: var(--white); }

/* ---- ABOUT TEASER ---- */
.about-teaser {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.about-teaser-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4rem;
  align-items: center;
}

.about-teaser-text h2 {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--white);
  margin: 0.8rem 0;
}

.about-teaser-text p {
  color: var(--text-dim);
  margin-bottom: 1.5rem;
  max-width: 520px;
}

.avatar-placeholder {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  flex-shrink: 0;
}

/* ---- NEWSLETTER ---- */
.newsletter {
  background: linear-gradient(135deg, rgba(108,99,255,0.08), rgba(167,139,250,0.08));
  border-top: 1px solid var(--border);
}

.newsletter-inner {
  text-align: center;
  max-width: 540px;
  margin: 0 auto;
}

.newsletter-inner h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.newsletter-inner p {
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.newsletter-form {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.newsletter-form input {
  flex: 1;
  padding: 0.7rem 1rem;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.95rem;
}

.newsletter-form input::placeholder { color: var(--text-dim); }
.newsletter-form input:focus {
  outline: none;
  border-color: var(--accent);
}

.newsletter-inner small {
  color: var(--text-dim);
  font-size: 0.8rem;
}

/* ---- FOOTER ---- */
.footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  color: var(--text-dim);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--text-dim);
}
.footer-links a:hover { color: var(--white); }

/* ---- PAGE CONTENT ---- */
.page-hero {
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--border);
}

.page-hero h1 {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

.page-hero p { color: var(--text-dim); font-size: 1.1rem; }

.prose {
  max-width: 750px;
  padding: 3rem 0 5rem;
}

.prose h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin: 2.5rem 0 1rem;
}

.prose p { color: var(--text-dim); margin-bottom: 1.2rem; }
.prose ul { color: var(--text-dim); padding-left: 1.5rem; margin-bottom: 1.2rem; }
.prose li { margin-bottom: 0.4rem; }
.prose a { color: var(--accent2); }

.article-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  color: var(--text-dim);
  font-size: 0.88rem;
  margin-bottom: 2rem;
}

.article-meta .post-tag { margin-bottom: 0; }

/* ---- BLOG LIST ---- */
.blog-list { display: flex; flex-direction: column; gap: 1.5rem; padding: 3rem 0 5rem; }

.blog-list-item {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem 2rem;
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  transition: border-color .2s, transform .2s;
}
.blog-list-item:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.blog-list-item .post-tag { margin-bottom: 0.5rem; }

.blog-list-item h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}
.blog-list-item h2 a { color: var(--white); }
.blog-list-item h2 a:hover { color: var(--accent2); }
.blog-list-item p { color: var(--text-dim); font-size: 0.93rem; }

/* ---- LEGAL PAGES ---- */
.legal-content {
  max-width: 750px;
  padding: 3rem 0 5rem;
  color: var(--text-dim);
}
.legal-content h2 { color: var(--white); font-size: 1.3rem; margin: 2rem 0 0.8rem; }
.legal-content p { margin-bottom: 1rem; }
.legal-content address { font-style: normal; }
.notice-box {
  background: rgba(108,99,255,0.1);
  border: 1px solid rgba(108,99,255,0.3);
  border-radius: var(--radius);
  padding: 1rem 1.4rem;
  color: var(--accent2);
  margin-bottom: 1.5rem;
  font-size: 0.92rem;
}

/* ---- MOBILE ---- */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 64px; left: 0; right: 0; background: var(--bg2); padding: 1.5rem; border-bottom: 1px solid var(--border); gap: 1rem; }
  .nav-toggle { display: block; }
  .about-teaser-inner { grid-template-columns: 1fr; }
  .avatar-placeholder { margin: 0 auto; }
  .newsletter-form { flex-direction: column; }
  .footer-inner { flex-direction: column; gap: 1rem; text-align: center; }
  .hero { padding: 4rem 0 3rem; }
  .blog-list-item { flex-direction: column; gap: 0.5rem; }
}